Air quality index [µg/m3]:
excellent ≤ 12
good ≤ 36
lightly polluted ≤ 60
moderately polluted ≤ 84
heavily polluted ≤ 120
severely polluted > 120
PM 2.5
[µg/m3]
PM 10
HOUR OPOLSKA ST. ROOF (BEFORE FILTERS)  AIR SUPPLIED TO OFFICES
020042lightly pollutedexcellent71excellent
010043lightly pollutedexcellent81excellent
000039lightly pollutedexcellent61excellent
230036goodexcellent61excellent
220037lightly pollutedexcellent61excellent
210035goodexcellent51excellent
200029goodexcellent41excellent
190017goodexcellent31excellent
180019goodexcellent31excellent
170017goodexcellent31excellent
160016goodexcellent41excellent
150013goodexcellent31excellent
140014goodexcellent31excellent
130016goodexcellent31excellent
120018goodexcellent31excellent
110019goodexcellent41excellent
100026goodexcellent51excellent
090040lightly pollutedexcellent81excellent
080044lightly pollutedexcellent81excellent
070040lightly pollutedexcellent81excellent
060037lightly pollutedexcellent71excellent
050038lightly pollutedexcellent61excellent
040040lightly pollutedexcellent61excellent
030037lightly pollutedexcellent61excellent